In a mycorrhizal relationship, the benefit which the plant gets from the fungus is definitely d. aid in the absorption of water and minerals just because photosynthesis does not demand much water to grow up and usually concentrates on such elements as <span>sun energy, glucose, CO2 etc. </span>
Is an example of <span>Mutualism
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Acceleration, in physics, is the rate of change of velocity of an object. An object's acceleration is the net result of any and all forces acting on the object, as described by Newton's Second Law.
<h3><u>Answer;</u></h3>
Potassium-40 has a half life of 1.25 billion years.
<h3><u>Explanation;</u></h3>
New amount = Original amount × (1/2)^n ; where n is the number of half lives.
Original amount is 50 atoms
New amount is 25 atoms
Therefore;
25 = 50 × (1/2)^n
1/2 = (1/2)^n
Thus; n = 1
n = 1 which is equivalent to 1.25 billion years
Therefore;
<u>Potassium-40 has a half life of 1.25 billion years.</u>